#include <stdio.h>
int main()
{
	int n = 1;
	int m = 2;
	switch (n)
	{
	case 1:m++;
	case 2:n++;
	case 3:
		switch (n)
		{
		case 1:n++;
		case 2:m++, n++;
			break;
		}
	case 4:
		m++;
		break;
	default:
		break;
	}
	printf("m=%d,n=%d\n", m, n);
	return 0;
}